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Update Manager refuses to install updates because it would require installing untrusted packages.

However, if I look at the list of so-called untrusted packages, those seem like they should be trusted. Why are all those packages treated as "untrusted" while they obviously are mainstream packages?

Here is the list:

accountsservice acpid aisleriot alsa-utils app-install-data-partner apport apport-gtk apturl apturl-common at-spi2-core banshee banshee-extension-soundmenu banshee-extension-ubuntuonemusicstore baobab bind9-host binutils bluez bluez-alsa bluez-cups bluez-gstreamer brltty bzip2 colord command-not-found command-not-found-data compiz compiz-core compiz-gnome compiz-plugins-default compiz-plugins-main-default cups cups-bsd cups-client cups-common cups-ppdc deja-dup desktop-file-utils dnsutils empathy empathy-common eog evince evince-common file-roller firefox firefox-globalmenu firefox-gnome-support gbrainy gcalctool gconf2 gconf2-common gedit gedit-common ghostscript ghostscript-cups ghostscript-x gir1.2-atspi-2.0 gir1.2-gconf-2.0 gir1.2-gnomebluetooth-1.0 gir1.2-gtk-3.0 gir1.2-gtksource-3.0 gir1.2-totem-1.0 gir1.2-webkit-3.0 gnome-accessibility-themes gnome-bluetooth gnome-control-center gnome-control-center-data gnome-desktop3-data gnome-font-viewer gnome-games-common gnome-keyring gnome-mahjongg gnome-online-accounts gnome-orca gnome-power-manager gnome-screenshot gnome-search-tool gnome-session-canberra gnome-settings-daemon gnome-sudoku gnome-system-log gnome-system-monitor gnome-utils-common gnomine gwibber gwibber-service gwibber-service-facebook gwibber-service-identica gwibber-service-twitter hpijs hplip hplip-cups hplip-data indicator-datetime indicator-session indicator-sound initramfs-tools initramfs-tools-bin initscripts isc-dhcp-client isc-dhcp-common language-selector-common language-selector-gnome libaccountsservice0 libarchive1 libasound2-plugins libatk-adaptor libatspi2.0-0 libbind9-60 libbluetooth3 libbrlapi0.5 libbz2-1.0 libcanberra-gtk-module libcanberra-gtk0 libcanberra-gtk3-0 libcanberra-gtk3-module libcanberra-pulse libcanberra0 libcolord1 libcups2 libcupscgi1 libcupsdriver1 libcupsimage2 libcupsmime1 libcupsppdc1 libcurl3-gnutls libdecoration0 libdns69 libevince3-3 libfreetype6 libgail-3-0 libgail-3-common libgck-1-0 libgconf2-4 libgcr-3-1 libgnome-bluetooth8 libgnome-control-center1 libgnome-desktop-3-2 libgoa-1.0-0 libgrip0 libgs9 libgs9-common libgssapi-krb5-2 libgtk-3-0 libgtk-3-bin libgtk-3-common libgtksourceview-3.0-0 libgtksourceview-3.0-common libgudev-1.0-0 libgweather-3-0 libgweather-common libgwibber-gtk2 libgwibber2 libhpmud0 libicu44 libimobiledevice2 libisc62 libisccc60 libisccfg62 libjasper1 libk5crypto3 libkrb5-3 libkrb5support0 libldap-2.4-2 liblightdm-gobject-1-0 liblwres60 libmetacity-private0 libmono-zeroconf1.0-cil libnautilus-extension1 libnm-glib-vpn1 libnm-glib4 libnm-util2 libnotify0.4-cil libnux-1.0-0 libnux-1.0-common libpam-gnome-keyring libpam-modules libpam-modules-bin libpam-runtime libpam0g libpulse-mainloop-glib0 libpulse0 libqt4-dbus libqt4-declarative libqt4-network libqt4-opengl libqt4-script libqt4-sql libqt4-sql-mysql libqt4-svg libqt4-xml libqt4-xmlpatterns libqtcore4 libqtgui4 libreoffice-emailmerge libreoffice-style-human libsane-hpaio libsmbclient libsyncdaemon-1.0-1 libt1-5 libtotem0 libubuntuone-1.0-1 libubuntuone1.0-cil libudev0 libunity-core-4.0-4 libunity6 libv4l-0 libwbclient0 libwebkitgtk-1.0-0 libwebkitgtk-1.0-common libwebkitgtk-3.0-0 libwebkitgtk-3.0-common libxml2 lightdm linux-generic linux-headers-3.0.0-15 linux-headers-3.0.0-15-generic linux-headers-generic linux-image-3.0.0-15-generic linux-image-generic linux-libc-dev lzma metacity metacity-common mobile-broadband-provider-info mousetweaks nautilus nautilus-data nautilus-sendto-empathy network-manager nux-tools onboard pulseaudio pulseaudio-esound-compat pulseaudio-module-bluetooth pulseaudio-module-gconf pulseaudio-module-x11 pulseaudio-utils python-apport python-brlapi python-cups python-cupshelpers python-gobject python-gobject-cairo python-launchpadlib python-libxml2 python-papyon python-problem-report python-pyatspi2 python-software-properties python-ubuntuone-client qdbus samba-common samba-common-bin seahorse shotwell simple-scan smbclient sni-qt software-center software-properties-common software-properties-gtk system-config-printer-common system-config-printer-gnome system-config-printer-udev sysv-rc sysvinit-utils telepathy-indicator thunderbird thunderbird-globalmenu thunderbird-gnome-support tomboy totem totem-common totem-mozilla totem-plugins ttf-opensymbol ubuntu-docs ubuntuone-client ubuntuone-client-gnome udev unity-services update-manager update-manager-core update-notifier update-notifier-common upstart vinagre x11-common xorg xserver-common xserver-xorg xserver-xorg-core xserver-xorg-input-all xserver-xorg-video-all xserver-xorg-video-intel xul-ext-ubufox

The output of sudo apt-get update && sudo apt-get upgrade is:

Ign oneiric-security InRelease Ign oneiric InRelease
Ign oneiric-updates InRelease
Ign oneiric-backports InRelease
Ign oneiric InRelease
Ign oneiric InRelease
Ign oneiric InRelease
Get:1 oneiric Release.gpg [198 B]
Get:2 oneiric-updates Release.gpg [198 B] Get:3 oneiric-security Release.gpg [198 B] Get:4 oneiric Release.gpg [198 B]
Ign oneiric Release.gpg
Get:5 oneiric Release.gpg [72 B]
Hit oneiric-backports Release.gpg
Get:6 oneiric-security Release [40.8 kB]
Hit oneiric Release
Get:7 oneiric-updates Release [40.8 kB]
Hit oneiric Release
Ign oneiric Release
Hit oneiric Release
Hit oneiric-backports Release
Hit oneiric/main Sources
Hit oneiric/partner i386 Packages
Hit oneiric/main Sources
Hit oneiric/restricted Sources
Hit oneiric/universe Sources
Hit oneiric/multiverse Sources
Hit oneiric/main i386 Packages
Hit oneiric/restricted i386 Packages
Hit oneiric/universe i386 Packages
Hit oneiric/multiverse i386 Packages
Ign oneiric/main TranslationIndex
Hit oneiric/main i386 Packages
Ign oneiric/main TranslationIndex
Ign oneiric/partner TranslationIndex
Hit oneiric/main TranslationIndex
Hit oneiric/multiverse TranslationIndex
Hit oneiric/restricted TranslationIndex
Hit oneiric/universe TranslationIndex
Get:8 oneiric-updates/main Sources [120 kB] Get:9 oneiric-security/main Sources [26.0 kB]
Get:10 oneiric-updates/restricted Sources [1,337 B] Get:11 oneiric-updates/universe Sources [40.4 kB] Get:12 oneiric-updates/multiverse Sources [3,654 B] Get:13 oneiric-updates/main i386 Packages [280 kB] Get:14 oneiric-security/restricted Sources [14 B] Get:15 oneiric-security/universe Sources [8,967 B] Get:16 oneiric-security/multiverse Sources [1,629 B]
Get:17 oneiric-security/main i386 Packages [74.6 kB] Get:18 oneiric-updates/restricted i386 Packages [2,968 B] Get:19 oneiric-updates/universe i386 Packages [92.1 kB] Get:20 oneiric-updates/multiverse i386 Packages [6,336 B] Get:21 oneiric-updates/main TranslationIndex [74 B] Get:22 oneiric-updates/multiverse TranslationIndex [72 B] Get:23 oneiric-updates/restricted TranslationIndex [71 B] Get:24 oneiric-updates/universe TranslationIndex [73 B] Hit oneiric-backports/main Sources Hit oneiric-backports/restricted Sources
Hit oneiric-backports/universe Sources
Get:25 oneiric-security/restricted i386 Packages [14 B] Get:26 oneiric-security/universe i386 Packages [24.7 kB] Hit oneiric-backports/multiverse Sources
Hit oneiric-backports/main i386 Packages Hit oneiric-backports/restricted i386 Packages Hit oneiric-backports/universe i386 Packages Hit oneiric-backports/multiverse i386 Packages Hit oneiric-backports/main TranslationIndex Hit oneiric-backports/multiverse TranslationIndex Hit oneiric-backports/restricted TranslationIndex Hit oneiric-backports/universe TranslationIndex Err oneiric/main Sources
404 Not Found Err oneiric/main i386 Packages 404 Not Found Get:27 oneiric-security/multiverse i386 Packages [3,345 B]
Get:28 oneiric-security/main TranslationIndex [73 B] Get:29 oneiric-security/multiverse TranslationIndex [72 B] Get:30 oneiric-security/restricted TranslationIndex [70 B] Get:31 oneiric-security/universe TranslationIndex [73 B] Ign oneiric/main Translation-en_US Hit oneiric/main Translation-en
Hit oneiric/multiverse Translation-en
Hit oneiric/restricted Translation-en
Hit oneiric/universe Translation-en
Get:32 oneiric-updates/main Translation-en [130 kB] Ign oneiric/partner Translation-en_US
Hit oneiric-security/main Translation-en
Ign oneiric/main Translation-en
Hit oneiric-security/multiverse Translation-en Hit oneiric-security/restricted Translation-en Hit oneiric-updates/multiverse Translation-en Hit oneiric-updates/restricted Translation-en Get:33 oneiric-updates/universe Translation-en [55.1 kB] Ign oneiric/partner Translation-en
Ign oneiric/main Translation-en_US
Hit oneiric-backports/main Translation-en Get:34 oneiric-security/universe Translation-en [17.4 kB] Hit oneiric-backports/multiverse Translation-en Hit oneiric-backports/restricted Translation-en Hit oneiric-backports/universe Translation-en Ign oneiric/main Translation-en
Fetched 971 kB in 1s (711 kB/s) W: Failed to fetch 404 Not Found

W: Failed to fetch 404 Not Found

E: Some index files failed to download. They have been ignored, or old ones used instead.

share|improve this question
NB: I installed 10.11 yesterday with Gnome-Shell and removed Unity. – Benjamin Jan 30 '12 at 17:43
Sorry, what is your question? – BrownE Jan 30 '12 at 18:48
@BrownE: how come those packages are treated as "untrusted" while they obviously are main packages. – Benjamin Jan 30 '12 at 19:13
what is the output of sudo apt-get update && sudo apt-get upgrade ? – fossfreedom Jan 30 '12 at 20:09
@fossfreedom: output added to question. – Benjamin Jan 30 '12 at 20:40
up vote 1 down vote accepted

With issues like this, you can usually narrow down the problem by looking at the errors as a result of running:

sudo apt-get update && sudo apt-get upgrade

With your latest update to your question you can see a 404-error which indicates that a web-page cannot be accessed (a 404 is a standard web-response). In this case, the elementaryArt PPA is not accessible. Usually this is a server issue - which disappears if the server comes back-on line.

However, in this case, if you look on launchpad, the PPA in question does not have an oneiric repository.

As to why you get untrusted packages error - usually this is because the signature for a repository needs to be updated or is temporarily unavailable.

In your specific case, the repo-keys have been "refreshed" via the update/upgrade action.

If you at a later date receive errors such as BAD-SIG and/or NO_PUBKEY you can fix these via the linked questions below

Linked Questions:

  1. How do I fix the GPG error "NO_PUBKEY"?
  2. What is the easiest way to resolve apt-get BADSIG GPG errors?
share|improve this answer

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